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<li class="navelem"><a class="el" href="dir_d44c64559bbebec7f509842c48db8b23.html">include</a></li><li class="navelem"><a class="el" href="dir_076842b242c291358044feb169933571.html">aws</a></li><li class="navelem"><a class="el" href="dir_cc4322e4b2151c90adb7cd2e3f54423a.html">crt</a></li>  </ul>
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<div class="title">Optional.h</div>  </div>
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<a href="Optional_8h.html">Go to the documentation of this file.</a><div class="fragment"><div class="line"><a name="l00001"></a><span class="lineno">    1</span>&#160;<span class="preprocessor">#pragma once</span></div>
<div class="line"><a name="l00002"></a><span class="lineno">    2</span>&#160;<span class="comment">/*</span></div>
<div class="line"><a name="l00003"></a><span class="lineno">    3</span>&#160;<span class="comment"> * Copyright 2010-2018 Amazon.com, Inc. or its affiliates. All Rights Reserved.</span></div>
<div class="line"><a name="l00004"></a><span class="lineno">    4</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00005"></a><span class="lineno">    5</span>&#160;<span class="comment"> * Licensed under the Apache License, Version 2.0 (the &quot;License&quot;).</span></div>
<div class="line"><a name="l00006"></a><span class="lineno">    6</span>&#160;<span class="comment"> * You may not use this file except in compliance with the License.</span></div>
<div class="line"><a name="l00007"></a><span class="lineno">    7</span>&#160;<span class="comment"> * A copy of the License is located at</span></div>
<div class="line"><a name="l00008"></a><span class="lineno">    8</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00009"></a><span class="lineno">    9</span>&#160;<span class="comment"> *  http://aws.amazon.com/apache2.0</span></div>
<div class="line"><a name="l00010"></a><span class="lineno">   10</span>&#160;<span class="comment"> *</span></div>
<div class="line"><a name="l00011"></a><span class="lineno">   11</span>&#160;<span class="comment"> * or in the &quot;license&quot; file accompanying this file. This file is distributed</span></div>
<div class="line"><a name="l00012"></a><span class="lineno">   12</span>&#160;<span class="comment"> * on an &quot;AS IS&quot; BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either</span></div>
<div class="line"><a name="l00013"></a><span class="lineno">   13</span>&#160;<span class="comment"> * express or implied. See the License for the specific language governing</span></div>
<div class="line"><a name="l00014"></a><span class="lineno">   14</span>&#160;<span class="comment"> * permissions and limitations under the License.</span></div>
<div class="line"><a name="l00015"></a><span class="lineno">   15</span>&#160;<span class="comment"> */</span></div>
<div class="line"><a name="l00016"></a><span class="lineno">   16</span>&#160;<span class="preprocessor">#if __cplusplus &gt;= 201703L</span></div>
<div class="line"><a name="l00017"></a><span class="lineno">   17</span>&#160;<span class="preprocessor">#    include &lt;optional&gt;</span></div>
<div class="line"><a name="l00018"></a><span class="lineno">   18</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00019"></a><span class="lineno">   19</span>&#160;<span class="preprocessor">#    include &lt;cstdint&gt;</span></div>
<div class="line"><a name="l00020"></a><span class="lineno">   20</span>&#160;<span class="preprocessor">#    include &lt;type_traits&gt;</span></div>
<div class="line"><a name="l00021"></a><span class="lineno">   21</span>&#160;<span class="preprocessor">#    include &lt;utility&gt;</span></div>
<div class="line"><a name="l00022"></a><span class="lineno">   22</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00023"></a><span class="lineno">   23</span>&#160; </div>
<div class="line"><a name="l00024"></a><span class="lineno">   24</span>&#160;<span class="keyword">namespace </span><a class="code" href="namespaceAws.html">Aws</a></div>
<div class="line"><a name="l00025"></a><span class="lineno">   25</span>&#160;{</div>
<div class="line"><a name="l00026"></a><span class="lineno">   26</span>&#160;    <span class="keyword">namespace </span>Crt</div>
<div class="line"><a name="l00027"></a><span class="lineno">   27</span>&#160;    {</div>
<div class="line"><a name="l00028"></a><span class="lineno">   28</span>&#160;<span class="preprocessor">#if __cplusplus &gt;= 201703L</span></div>
<div class="line"><a name="l00029"></a><span class="lineno">   29</span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt; <span class="keyword">using</span> Optional = std::optional&lt;T&gt;;</div>
<div class="line"><a name="l00030"></a><span class="lineno">   30</span>&#160;<span class="preprocessor">#else</span></div>
<div class="line"><a name="l00031"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html">   31</a></span>&#160;        <span class="keyword">template</span> &lt;<span class="keyword">typename</span> T&gt; <span class="keyword">class </span><a class="code" href="classAws_1_1Crt_1_1Optional.html">Optional</a></div>
<div class="line"><a name="l00032"></a><span class="lineno">   32</span>&#160;        {</div>
<div class="line"><a name="l00033"></a><span class="lineno">   33</span>&#160;          <span class="keyword">public</span>:</div>
<div class="line"><a name="l00034"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#a2d231eff6f2057ef026194c361a217d0">   34</a></span>&#160;            <a class="code" href="classAws_1_1Crt_1_1Optional.html#a2d231eff6f2057ef026194c361a217d0">Optional</a>() : m_value(nullptr) {}</div>
<div class="line"><a name="l00035"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#a0abaf361d1696cf727cccab1b07ae121">   35</a></span>&#160;            <a class="code" href="classAws_1_1Crt_1_1Optional.html#a0abaf361d1696cf727cccab1b07ae121">Optional</a>(<span class="keyword">const</span> T &amp;val)</div>
<div class="line"><a name="l00036"></a><span class="lineno">   36</span>&#160;            {</div>
<div class="line"><a name="l00037"></a><span class="lineno">   37</span>&#160;                <span class="keyword">new</span> (&amp;m_storage) T(val);</div>
<div class="line"><a name="l00038"></a><span class="lineno">   38</span>&#160;                m_value = <span class="keyword">reinterpret_cast&lt;</span>T *<span class="keyword">&gt;</span>(&amp;m_storage);</div>
<div class="line"><a name="l00039"></a><span class="lineno">   39</span>&#160;            }</div>
<div class="line"><a name="l00040"></a><span class="lineno">   40</span>&#160; </div>
<div class="line"><a name="l00041"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#a7e2b73a4f0a0619ea90ab233a77a0282">   41</a></span>&#160;            <a class="code" href="classAws_1_1Crt_1_1Optional.html#a7e2b73a4f0a0619ea90ab233a77a0282">Optional</a>(T &amp;&amp;val)</div>
<div class="line"><a name="l00042"></a><span class="lineno">   42</span>&#160;            {</div>
<div class="line"><a name="l00043"></a><span class="lineno">   43</span>&#160;                <span class="keyword">new</span> (&amp;m_storage) T(std::forward&lt;T&gt;(val));</div>
<div class="line"><a name="l00044"></a><span class="lineno">   44</span>&#160;                m_value = <span class="keyword">reinterpret_cast&lt;</span>T *<span class="keyword">&gt;</span>(&amp;m_storage);</div>
<div class="line"><a name="l00045"></a><span class="lineno">   45</span>&#160;            }</div>
<div class="line"><a name="l00046"></a><span class="lineno">   46</span>&#160; </div>
<div class="line"><a name="l00047"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#af354cd9f9c26684d2bf0c273695dae32">   47</a></span>&#160;            <a class="code" href="classAws_1_1Crt_1_1Optional.html#af354cd9f9c26684d2bf0c273695dae32">~Optional</a>()</div>
<div class="line"><a name="l00048"></a><span class="lineno">   48</span>&#160;            {</div>
<div class="line"><a name="l00049"></a><span class="lineno">   49</span>&#160;                <span class="keywordflow">if</span> (m_value)</div>
<div class="line"><a name="l00050"></a><span class="lineno">   50</span>&#160;                {</div>
<div class="line"><a name="l00051"></a><span class="lineno">   51</span>&#160;                    m_value-&gt;~T();</div>
<div class="line"><a name="l00052"></a><span class="lineno">   52</span>&#160;                }</div>
<div class="line"><a name="l00053"></a><span class="lineno">   53</span>&#160;            }</div>
<div class="line"><a name="l00054"></a><span class="lineno">   54</span>&#160; </div>
<div class="line"><a name="l00055"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#a1c48df128a1bdabae868e70a4c79c2da">   55</a></span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span> U = T&gt; <a class="code" href="classAws_1_1Crt_1_1Optional.html">Optional</a> &amp;<a class="code" href="classAws_1_1Crt_1_1Optional.html#a1c48df128a1bdabae868e70a4c79c2da">operator=</a>(U &amp;&amp;u)</div>
<div class="line"><a name="l00056"></a><span class="lineno">   56</span>&#160;            {</div>
<div class="line"><a name="l00057"></a><span class="lineno">   57</span>&#160;                <span class="keywordflow">if</span> (m_value)</div>
<div class="line"><a name="l00058"></a><span class="lineno">   58</span>&#160;                {</div>
<div class="line"><a name="l00059"></a><span class="lineno">   59</span>&#160;                    *m_value = std::forward&lt;U&gt;(u);</div>
<div class="line"><a name="l00060"></a><span class="lineno">   60</span>&#160;                    <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00061"></a><span class="lineno">   61</span>&#160;                }</div>
<div class="line"><a name="l00062"></a><span class="lineno">   62</span>&#160; </div>
<div class="line"><a name="l00063"></a><span class="lineno">   63</span>&#160;                <span class="keyword">new</span> (&amp;m_storage) T(std::forward&lt;U&gt;(u));</div>
<div class="line"><a name="l00064"></a><span class="lineno">   64</span>&#160;                m_value = <span class="keyword">reinterpret_cast&lt;</span>T *<span class="keyword">&gt;</span>(&amp;m_storage);</div>
<div class="line"><a name="l00065"></a><span class="lineno">   65</span>&#160; </div>
<div class="line"><a name="l00066"></a><span class="lineno">   66</span>&#160;                <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00067"></a><span class="lineno">   67</span>&#160;            }</div>
<div class="line"><a name="l00068"></a><span class="lineno">   68</span>&#160; </div>
<div class="line"><a name="l00069"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#a5043bb5fb2165c6a882ca3bcabca96e4">   69</a></span>&#160;            <a class="code" href="classAws_1_1Crt_1_1Optional.html#a5043bb5fb2165c6a882ca3bcabca96e4">Optional</a>(<span class="keyword">const</span> <a class="code" href="classAws_1_1Crt_1_1Optional.html">Optional&lt;T&gt;</a> &amp;other)</div>
<div class="line"><a name="l00070"></a><span class="lineno">   70</span>&#160;            {</div>
<div class="line"><a name="l00071"></a><span class="lineno">   71</span>&#160;                <span class="keywordflow">if</span> (other.m_value)</div>
<div class="line"><a name="l00072"></a><span class="lineno">   72</span>&#160;                {</div>
<div class="line"><a name="l00073"></a><span class="lineno">   73</span>&#160;                    <span class="keyword">new</span> (&amp;m_storage) T(*other.m_value);</div>
<div class="line"><a name="l00074"></a><span class="lineno">   74</span>&#160;                    m_value = <span class="keyword">reinterpret_cast&lt;</span>T *<span class="keyword">&gt;</span>(&amp;m_storage);</div>
<div class="line"><a name="l00075"></a><span class="lineno">   75</span>&#160;                }</div>
<div class="line"><a name="l00076"></a><span class="lineno">   76</span>&#160;                <span class="keywordflow">else</span></div>
<div class="line"><a name="l00077"></a><span class="lineno">   77</span>&#160;                {</div>
<div class="line"><a name="l00078"></a><span class="lineno">   78</span>&#160;                    m_value = <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00079"></a><span class="lineno">   79</span>&#160;                }</div>
<div class="line"><a name="l00080"></a><span class="lineno">   80</span>&#160;            }</div>
<div class="line"><a name="l00081"></a><span class="lineno">   81</span>&#160; </div>
<div class="line"><a name="l00082"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#a6ab3e3d24753e6eb021af453b08ee4aa">   82</a></span>&#160;            <a class="code" href="classAws_1_1Crt_1_1Optional.html#a6ab3e3d24753e6eb021af453b08ee4aa">Optional</a>(<a class="code" href="classAws_1_1Crt_1_1Optional.html">Optional&lt;T&gt;</a> &amp;&amp;other)</div>
<div class="line"><a name="l00083"></a><span class="lineno">   83</span>&#160;            {</div>
<div class="line"><a name="l00084"></a><span class="lineno">   84</span>&#160;                <span class="keywordflow">if</span> (other.m_value)</div>
<div class="line"><a name="l00085"></a><span class="lineno">   85</span>&#160;                {</div>
<div class="line"><a name="l00086"></a><span class="lineno">   86</span>&#160;                    <span class="keyword">new</span> (&amp;m_storage) T(std::forward&lt;T&gt;(*other.m_value));</div>
<div class="line"><a name="l00087"></a><span class="lineno">   87</span>&#160;                    m_value = <span class="keyword">reinterpret_cast&lt;</span>T *<span class="keyword">&gt;</span>(&amp;m_storage);</div>
<div class="line"><a name="l00088"></a><span class="lineno">   88</span>&#160;                }</div>
<div class="line"><a name="l00089"></a><span class="lineno">   89</span>&#160;                <span class="keywordflow">else</span></div>
<div class="line"><a name="l00090"></a><span class="lineno">   90</span>&#160;                {</div>
<div class="line"><a name="l00091"></a><span class="lineno">   91</span>&#160;                    m_value = <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00092"></a><span class="lineno">   92</span>&#160;                }</div>
<div class="line"><a name="l00093"></a><span class="lineno">   93</span>&#160;            }</div>
<div class="line"><a name="l00094"></a><span class="lineno">   94</span>&#160; </div>
<div class="line"><a name="l00095"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#a42684d529ead41f08507b9c553cc19da">   95</a></span>&#160;            <a class="code" href="classAws_1_1Crt_1_1Optional.html">Optional</a> &amp;<a class="code" href="classAws_1_1Crt_1_1Optional.html#a42684d529ead41f08507b9c553cc19da">operator=</a>(<span class="keyword">const</span> <a class="code" href="classAws_1_1Crt_1_1Optional.html">Optional</a> &amp;other)</div>
<div class="line"><a name="l00096"></a><span class="lineno">   96</span>&#160;            {</div>
<div class="line"><a name="l00097"></a><span class="lineno">   97</span>&#160;                <span class="keywordflow">if</span> (<span class="keyword">this</span> == &amp;other)</div>
<div class="line"><a name="l00098"></a><span class="lineno">   98</span>&#160;                {</div>
<div class="line"><a name="l00099"></a><span class="lineno">   99</span>&#160;                    <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00100"></a><span class="lineno">  100</span>&#160;                }</div>
<div class="line"><a name="l00101"></a><span class="lineno">  101</span>&#160; </div>
<div class="line"><a name="l00102"></a><span class="lineno">  102</span>&#160;                <span class="keywordflow">if</span> (m_value)</div>
<div class="line"><a name="l00103"></a><span class="lineno">  103</span>&#160;                {</div>
<div class="line"><a name="l00104"></a><span class="lineno">  104</span>&#160;                    <span class="keywordflow">if</span> (other.m_value)</div>
<div class="line"><a name="l00105"></a><span class="lineno">  105</span>&#160;                    {</div>
<div class="line"><a name="l00106"></a><span class="lineno">  106</span>&#160;                        *m_value = *other.m_value;</div>
<div class="line"><a name="l00107"></a><span class="lineno">  107</span>&#160;                    }</div>
<div class="line"><a name="l00108"></a><span class="lineno">  108</span>&#160;                    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00109"></a><span class="lineno">  109</span>&#160;                    {</div>
<div class="line"><a name="l00110"></a><span class="lineno">  110</span>&#160;                        m_value-&gt;~T();</div>
<div class="line"><a name="l00111"></a><span class="lineno">  111</span>&#160;                        m_value = <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00112"></a><span class="lineno">  112</span>&#160;                    }</div>
<div class="line"><a name="l00113"></a><span class="lineno">  113</span>&#160; </div>
<div class="line"><a name="l00114"></a><span class="lineno">  114</span>&#160;                    <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00115"></a><span class="lineno">  115</span>&#160;                }</div>
<div class="line"><a name="l00116"></a><span class="lineno">  116</span>&#160; </div>
<div class="line"><a name="l00117"></a><span class="lineno">  117</span>&#160;                <span class="keywordflow">if</span> (other.m_value)</div>
<div class="line"><a name="l00118"></a><span class="lineno">  118</span>&#160;                {</div>
<div class="line"><a name="l00119"></a><span class="lineno">  119</span>&#160;                    <span class="keyword">new</span> (&amp;m_storage) T(*other.m_value);</div>
<div class="line"><a name="l00120"></a><span class="lineno">  120</span>&#160;                    m_value = <span class="keyword">reinterpret_cast&lt;</span>T *<span class="keyword">&gt;</span>(&amp;m_storage);</div>
<div class="line"><a name="l00121"></a><span class="lineno">  121</span>&#160;                }</div>
<div class="line"><a name="l00122"></a><span class="lineno">  122</span>&#160; </div>
<div class="line"><a name="l00123"></a><span class="lineno">  123</span>&#160;                <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00124"></a><span class="lineno">  124</span>&#160;            }</div>
<div class="line"><a name="l00125"></a><span class="lineno">  125</span>&#160; </div>
<div class="line"><a name="l00126"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#a5c535dc3e63281bda3587ccb7e71daef">  126</a></span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span> U = T&gt; <a class="code" href="classAws_1_1Crt_1_1Optional.html">Optional&lt;T&gt;</a> &amp;<a class="code" href="classAws_1_1Crt_1_1Optional.html#a5c535dc3e63281bda3587ccb7e71daef">operator=</a>(<span class="keyword">const</span> <a class="code" href="classAws_1_1Crt_1_1Optional.html">Optional&lt;U&gt;</a> &amp;other)</div>
<div class="line"><a name="l00127"></a><span class="lineno">  127</span>&#160;            {</div>
<div class="line"><a name="l00128"></a><span class="lineno">  128</span>&#160;                <span class="keywordflow">if</span> (<span class="keyword">this</span> == &amp;other)</div>
<div class="line"><a name="l00129"></a><span class="lineno">  129</span>&#160;                {</div>
<div class="line"><a name="l00130"></a><span class="lineno">  130</span>&#160;                    <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00131"></a><span class="lineno">  131</span>&#160;                }</div>
<div class="line"><a name="l00132"></a><span class="lineno">  132</span>&#160; </div>
<div class="line"><a name="l00133"></a><span class="lineno">  133</span>&#160;                <span class="keywordflow">if</span> (m_value)</div>
<div class="line"><a name="l00134"></a><span class="lineno">  134</span>&#160;                {</div>
<div class="line"><a name="l00135"></a><span class="lineno">  135</span>&#160;                    <span class="keywordflow">if</span> (other.m_value)</div>
<div class="line"><a name="l00136"></a><span class="lineno">  136</span>&#160;                    {</div>
<div class="line"><a name="l00137"></a><span class="lineno">  137</span>&#160;                        *m_value = *other.m_value;</div>
<div class="line"><a name="l00138"></a><span class="lineno">  138</span>&#160;                    }</div>
<div class="line"><a name="l00139"></a><span class="lineno">  139</span>&#160;                    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00140"></a><span class="lineno">  140</span>&#160;                    {</div>
<div class="line"><a name="l00141"></a><span class="lineno">  141</span>&#160;                        m_value-&gt;~T();</div>
<div class="line"><a name="l00142"></a><span class="lineno">  142</span>&#160;                        m_value = <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00143"></a><span class="lineno">  143</span>&#160;                    }</div>
<div class="line"><a name="l00144"></a><span class="lineno">  144</span>&#160; </div>
<div class="line"><a name="l00145"></a><span class="lineno">  145</span>&#160;                    <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00146"></a><span class="lineno">  146</span>&#160;                }</div>
<div class="line"><a name="l00147"></a><span class="lineno">  147</span>&#160; </div>
<div class="line"><a name="l00148"></a><span class="lineno">  148</span>&#160;                <span class="keywordflow">if</span> (other.m_value)</div>
<div class="line"><a name="l00149"></a><span class="lineno">  149</span>&#160;                {</div>
<div class="line"><a name="l00150"></a><span class="lineno">  150</span>&#160;                    <span class="keyword">new</span> (&amp;m_storage) T(*other.m_value);</div>
<div class="line"><a name="l00151"></a><span class="lineno">  151</span>&#160;                    m_value = <span class="keyword">reinterpret_cast&lt;</span>T *<span class="keyword">&gt;</span>(&amp;m_storage);</div>
<div class="line"><a name="l00152"></a><span class="lineno">  152</span>&#160;                }</div>
<div class="line"><a name="l00153"></a><span class="lineno">  153</span>&#160; </div>
<div class="line"><a name="l00154"></a><span class="lineno">  154</span>&#160;                <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00155"></a><span class="lineno">  155</span>&#160;            }</div>
<div class="line"><a name="l00156"></a><span class="lineno">  156</span>&#160; </div>
<div class="line"><a name="l00157"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#a16c1591bb97ebdb0972e49bec5dce6c3">  157</a></span>&#160;            <span class="keyword">template</span> &lt;<span class="keyword">typename</span> U = T&gt; <a class="code" href="classAws_1_1Crt_1_1Optional.html">Optional&lt;T&gt;</a> &amp;<a class="code" href="classAws_1_1Crt_1_1Optional.html#a16c1591bb97ebdb0972e49bec5dce6c3">operator=</a>(<a class="code" href="classAws_1_1Crt_1_1Optional.html">Optional&lt;U&gt;</a> &amp;&amp;other)</div>
<div class="line"><a name="l00158"></a><span class="lineno">  158</span>&#160;            {</div>
<div class="line"><a name="l00159"></a><span class="lineno">  159</span>&#160;                <span class="keywordflow">if</span> (<span class="keyword">this</span> == &amp;other)</div>
<div class="line"><a name="l00160"></a><span class="lineno">  160</span>&#160;                {</div>
<div class="line"><a name="l00161"></a><span class="lineno">  161</span>&#160;                    <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00162"></a><span class="lineno">  162</span>&#160;                }</div>
<div class="line"><a name="l00163"></a><span class="lineno">  163</span>&#160; </div>
<div class="line"><a name="l00164"></a><span class="lineno">  164</span>&#160;                <span class="keywordflow">if</span> (m_value)</div>
<div class="line"><a name="l00165"></a><span class="lineno">  165</span>&#160;                {</div>
<div class="line"><a name="l00166"></a><span class="lineno">  166</span>&#160;                    <span class="keywordflow">if</span> (other.m_value)</div>
<div class="line"><a name="l00167"></a><span class="lineno">  167</span>&#160;                    {</div>
<div class="line"><a name="l00168"></a><span class="lineno">  168</span>&#160;                        *m_value = std::forward&lt;U&gt;(*other.m_value);</div>
<div class="line"><a name="l00169"></a><span class="lineno">  169</span>&#160;                    }</div>
<div class="line"><a name="l00170"></a><span class="lineno">  170</span>&#160;                    <span class="keywordflow">else</span></div>
<div class="line"><a name="l00171"></a><span class="lineno">  171</span>&#160;                    {</div>
<div class="line"><a name="l00172"></a><span class="lineno">  172</span>&#160;                        m_value-&gt;~T();</div>
<div class="line"><a name="l00173"></a><span class="lineno">  173</span>&#160;                        m_value = <span class="keyword">nullptr</span>;</div>
<div class="line"><a name="l00174"></a><span class="lineno">  174</span>&#160;                    }</div>
<div class="line"><a name="l00175"></a><span class="lineno">  175</span>&#160; </div>
<div class="line"><a name="l00176"></a><span class="lineno">  176</span>&#160;                    <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00177"></a><span class="lineno">  177</span>&#160;                }</div>
<div class="line"><a name="l00178"></a><span class="lineno">  178</span>&#160; </div>
<div class="line"><a name="l00179"></a><span class="lineno">  179</span>&#160;                <span class="keywordflow">if</span> (other.m_value)</div>
<div class="line"><a name="l00180"></a><span class="lineno">  180</span>&#160;                {</div>
<div class="line"><a name="l00181"></a><span class="lineno">  181</span>&#160;                    <span class="keyword">new</span> (&amp;m_storage) T(std::forward&lt;U&gt;(*other.m_value));</div>
<div class="line"><a name="l00182"></a><span class="lineno">  182</span>&#160;                    m_value = <span class="keyword">reinterpret_cast&lt;</span>T *<span class="keyword">&gt;</span>(&amp;m_storage);</div>
<div class="line"><a name="l00183"></a><span class="lineno">  183</span>&#160;                }</div>
<div class="line"><a name="l00184"></a><span class="lineno">  184</span>&#160; </div>
<div class="line"><a name="l00185"></a><span class="lineno">  185</span>&#160;                <span class="keywordflow">return</span> *<span class="keyword">this</span>;</div>
<div class="line"><a name="l00186"></a><span class="lineno">  186</span>&#160;            }</div>
<div class="line"><a name="l00187"></a><span class="lineno">  187</span>&#160; </div>
<div class="line"><a name="l00188"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#ae7151cbbc2225e50191ad65317e861e6">  188</a></span>&#160;            <span class="keyword">const</span> T *<a class="code" href="classAws_1_1Crt_1_1Optional.html#ae7151cbbc2225e50191ad65317e861e6">operator-&gt;</a>()<span class="keyword"> const </span>{ <span class="keywordflow">return</span> m_value; }</div>
<div class="line"><a name="l00189"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#a79c196520fb7c2cb61c4ce6b67528d14">  189</a></span>&#160;            T *<a class="code" href="classAws_1_1Crt_1_1Optional.html#a79c196520fb7c2cb61c4ce6b67528d14">operator-&gt;</a>() { <span class="keywordflow">return</span> m_value; }</div>
<div class="line"><a name="l00190"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#a1a98d796aad2b08a76420d513cfeeb5f">  190</a></span>&#160;            <span class="keyword">const</span> T &amp;<a class="code" href="classAws_1_1Crt_1_1Optional.html#a1a98d796aad2b08a76420d513cfeeb5f">operator*</a>() const &amp; { <span class="keywordflow">return</span> *m_value; }</div>
<div class="line"><a name="l00191"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#ae66b3c3e6c048aee44c6b867ac9d36b4">  191</a></span>&#160;            T &amp;<a class="code" href="classAws_1_1Crt_1_1Optional.html#ae66b3c3e6c048aee44c6b867ac9d36b4">operator*</a>() &amp; { <span class="keywordflow">return</span> *m_value; }</div>
<div class="line"><a name="l00192"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#a8c6200da7a73403379591dd5dc42b6e7">  192</a></span>&#160;            <span class="keyword">const</span> T &amp;&amp;<a class="code" href="classAws_1_1Crt_1_1Optional.html#a8c6200da7a73403379591dd5dc42b6e7">operator*</a>() const &amp;&amp; { <span class="keywordflow">return</span> std::move(*m_value); }</div>
<div class="line"><a name="l00193"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#ac1afd6239f14821322f671e7b3ec57b6">  193</a></span>&#160;            T &amp;&amp;<a class="code" href="classAws_1_1Crt_1_1Optional.html#ac1afd6239f14821322f671e7b3ec57b6">operator*</a>() &amp;&amp; { <span class="keywordflow">return</span> std::move(*m_value); }</div>
<div class="line"><a name="l00194"></a><span class="lineno">  194</span>&#160; </div>
<div class="line"><a name="l00195"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#a158da009283c18806c2b3495c16f4ceb">  195</a></span>&#160;            <span class="keyword">explicit</span> <span class="keyword">operator</span> bool() const noexcept { <span class="keywordflow">return</span> m_value != <span class="keyword">nullptr</span>; }</div>
<div class="line"><a name="l00196"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#a4356231bdd8a67fd565f8a8211a2e770">  196</a></span>&#160;            <span class="keywordtype">bool</span> <a class="code" href="classAws_1_1Crt_1_1Optional.html#a4356231bdd8a67fd565f8a8211a2e770">has_value</a>() const noexcept { <span class="keywordflow">return</span> m_value != <span class="keyword">nullptr</span>; }</div>
<div class="line"><a name="l00197"></a><span class="lineno">  197</span>&#160; </div>
<div class="line"><a name="l00198"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#acac8a48c762fc374da936b3ef88d4de8">  198</a></span>&#160;            T &amp;<a class="code" href="classAws_1_1Crt_1_1Optional.html#acac8a48c762fc374da936b3ef88d4de8">value</a>() &amp; { <span class="keywordflow">return</span> *m_value; }</div>
<div class="line"><a name="l00199"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#a7840d9dc0552fb2cc9c0b50fccd9e22c">  199</a></span>&#160;            <span class="keyword">const</span> T &amp;<a class="code" href="classAws_1_1Crt_1_1Optional.html#a7840d9dc0552fb2cc9c0b50fccd9e22c">value</a>() const &amp; { <span class="keywordflow">return</span> *m_value; }</div>
<div class="line"><a name="l00200"></a><span class="lineno">  200</span>&#160; </div>
<div class="line"><a name="l00201"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#af0e1575063b6c0b81c92fc7bd2fe7c7d">  201</a></span>&#160;            T &amp;&amp;<a class="code" href="classAws_1_1Crt_1_1Optional.html#af0e1575063b6c0b81c92fc7bd2fe7c7d">value</a>() &amp;&amp; { <span class="keywordflow">return</span> std::move(*m_value); }</div>
<div class="line"><a name="l00202"></a><span class="lineno"><a class="line" href="classAws_1_1Crt_1_1Optional.html#acc2f21869b2289e9c55153ac60ebd91e">  202</a></span>&#160;            <span class="keyword">const</span> T &amp;&amp;<a class="code" href="classAws_1_1Crt_1_1Optional.html#acc2f21869b2289e9c55153ac60ebd91e">value</a>() const &amp;&amp; { <span class="keywordflow">return</span> std::move(*m_value); }</div>
<div class="line"><a name="l00203"></a><span class="lineno">  203</span>&#160; </div>
<div class="line"><a name="l00204"></a><span class="lineno">  204</span>&#160;          <span class="keyword">private</span>:</div>
<div class="line"><a name="l00205"></a><span class="lineno">  205</span>&#160;            <span class="keyword">typename</span> std::aligned_storage&lt;<span class="keyword">sizeof</span>(T)&gt;::<a class="code" href="namespaceAws.html#a5256b1ff01fae77769fee34ff8ef45a7">type</a> m_storage;</div>
<div class="line"><a name="l00206"></a><span class="lineno">  206</span>&#160;            T *m_value;</div>
<div class="line"><a name="l00207"></a><span class="lineno">  207</span>&#160;        };</div>
<div class="line"><a name="l00208"></a><span class="lineno">  208</span>&#160;<span class="preprocessor">#endif</span></div>
<div class="line"><a name="l00209"></a><span class="lineno">  209</span>&#160;    } <span class="comment">// namespace Crt</span></div>
<div class="line"><a name="l00210"></a><span class="lineno">  210</span>&#160;} <span class="comment">// namespace Aws</span></div>
</div><!-- fragment --></div><!-- contents -->
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_a79c196520fb7c2cb61c4ce6b67528d14"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#a79c196520fb7c2cb61c4ce6b67528d14">Aws::Crt::Optional::operator-&gt;</a></div><div class="ttdeci">T * operator-&gt;()</div><div class="ttdef"><b>Definition:</b> Optional.h:189</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_af354cd9f9c26684d2bf0c273695dae32"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#af354cd9f9c26684d2bf0c273695dae32">Aws::Crt::Optional::~Optional</a></div><div class="ttdeci">~Optional()</div><div class="ttdef"><b>Definition:</b> Optional.h:47</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_acc2f21869b2289e9c55153ac60ebd91e"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#acc2f21869b2289e9c55153ac60ebd91e">Aws::Crt::Optional::value</a></div><div class="ttdeci">const T &amp;&amp; value() const &amp;&amp;</div><div class="ttdef"><b>Definition:</b> Optional.h:202</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_a0abaf361d1696cf727cccab1b07ae121"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#a0abaf361d1696cf727cccab1b07ae121">Aws::Crt::Optional::Optional</a></div><div class="ttdeci">Optional(const T &amp;val)</div><div class="ttdef"><b>Definition:</b> Optional.h:35</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_af0e1575063b6c0b81c92fc7bd2fe7c7d"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#af0e1575063b6c0b81c92fc7bd2fe7c7d">Aws::Crt::Optional::value</a></div><div class="ttdeci">T &amp;&amp; value() &amp;&amp;</div><div class="ttdef"><b>Definition:</b> Optional.h:201</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_a16c1591bb97ebdb0972e49bec5dce6c3"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#a16c1591bb97ebdb0972e49bec5dce6c3">Aws::Crt::Optional::operator=</a></div><div class="ttdeci">Optional&lt; T &gt; &amp; operator=(Optional&lt; U &gt; &amp;&amp;other)</div><div class="ttdef"><b>Definition:</b> Optional.h:157</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_a5c535dc3e63281bda3587ccb7e71daef"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#a5c535dc3e63281bda3587ccb7e71daef">Aws::Crt::Optional::operator=</a></div><div class="ttdeci">Optional&lt; T &gt; &amp; operator=(const Optional&lt; U &gt; &amp;other)</div><div class="ttdef"><b>Definition:</b> Optional.h:126</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_a6ab3e3d24753e6eb021af453b08ee4aa"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#a6ab3e3d24753e6eb021af453b08ee4aa">Aws::Crt::Optional::Optional</a></div><div class="ttdeci">Optional(Optional&lt; T &gt; &amp;&amp;other)</div><div class="ttdef"><b>Definition:</b> Optional.h:82</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_a7840d9dc0552fb2cc9c0b50fccd9e22c"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#a7840d9dc0552fb2cc9c0b50fccd9e22c">Aws::Crt::Optional::value</a></div><div class="ttdeci">const T &amp; value() const &amp;</div><div class="ttdef"><b>Definition:</b> Optional.h:199</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_ac1afd6239f14821322f671e7b3ec57b6"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#ac1afd6239f14821322f671e7b3ec57b6">Aws::Crt::Optional::operator*</a></div><div class="ttdeci">T &amp;&amp; operator*() &amp;&amp;</div><div class="ttdef"><b>Definition:</b> Optional.h:193</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_a8c6200da7a73403379591dd5dc42b6e7"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#a8c6200da7a73403379591dd5dc42b6e7">Aws::Crt::Optional::operator*</a></div><div class="ttdeci">const T &amp;&amp; operator*() const &amp;&amp;</div><div class="ttdef"><b>Definition:</b> Optional.h:192</div></div>
<div class="ttc" id="anamespaceAws_html"><div class="ttname"><a href="namespaceAws.html">Aws</a></div><div class="ttdef"><b>Definition:</b> Api.h:25</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_ae66b3c3e6c048aee44c6b867ac9d36b4"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#ae66b3c3e6c048aee44c6b867ac9d36b4">Aws::Crt::Optional::operator*</a></div><div class="ttdeci">T &amp; operator*() &amp;</div><div class="ttdef"><b>Definition:</b> Optional.h:191</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_a1c48df128a1bdabae868e70a4c79c2da"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#a1c48df128a1bdabae868e70a4c79c2da">Aws::Crt::Optional::operator=</a></div><div class="ttdeci">Optional &amp; operator=(U &amp;&amp;u)</div><div class="ttdef"><b>Definition:</b> Optional.h:55</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html">Aws::Crt::Optional</a></div><div class="ttdef"><b>Definition:</b> Optional.h:32</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_a5043bb5fb2165c6a882ca3bcabca96e4"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#a5043bb5fb2165c6a882ca3bcabca96e4">Aws::Crt::Optional::Optional</a></div><div class="ttdeci">Optional(const Optional&lt; T &gt; &amp;other)</div><div class="ttdef"><b>Definition:</b> Optional.h:69</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_a42684d529ead41f08507b9c553cc19da"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#a42684d529ead41f08507b9c553cc19da">Aws::Crt::Optional::operator=</a></div><div class="ttdeci">Optional &amp; operator=(const Optional &amp;other)</div><div class="ttdef"><b>Definition:</b> Optional.h:95</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_a4356231bdd8a67fd565f8a8211a2e770"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#a4356231bdd8a67fd565f8a8211a2e770">Aws::Crt::Optional::has_value</a></div><div class="ttdeci">bool has_value() const noexcept</div><div class="ttdef"><b>Definition:</b> Optional.h:196</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_a2d231eff6f2057ef026194c361a217d0"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#a2d231eff6f2057ef026194c361a217d0">Aws::Crt::Optional::Optional</a></div><div class="ttdeci">Optional()</div><div class="ttdef"><b>Definition:</b> Optional.h:34</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_a7e2b73a4f0a0619ea90ab233a77a0282"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#a7e2b73a4f0a0619ea90ab233a77a0282">Aws::Crt::Optional::Optional</a></div><div class="ttdeci">Optional(T &amp;&amp;val)</div><div class="ttdef"><b>Definition:</b> Optional.h:41</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_a1a98d796aad2b08a76420d513cfeeb5f"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#a1a98d796aad2b08a76420d513cfeeb5f">Aws::Crt::Optional::operator*</a></div><div class="ttdeci">const T &amp; operator*() const &amp;</div><div class="ttdef"><b>Definition:</b> Optional.h:190</div></div>
<div class="ttc" id="anamespaceAws_html_a5256b1ff01fae77769fee34ff8ef45a7"><div class="ttname"><a href="namespaceAws.html#a5256b1ff01fae77769fee34ff8ef45a7">Aws::type</a></div><div class="ttdeci">newitem type</div><div class="ttdef"><b>Definition:</b> cJSON.cpp:2209</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_ae7151cbbc2225e50191ad65317e861e6"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#ae7151cbbc2225e50191ad65317e861e6">Aws::Crt::Optional::operator-&gt;</a></div><div class="ttdeci">const T * operator-&gt;() const</div><div class="ttdef"><b>Definition:</b> Optional.h:188</div></div>
<div class="ttc" id="aclassAws_1_1Crt_1_1Optional_html_acac8a48c762fc374da936b3ef88d4de8"><div class="ttname"><a href="classAws_1_1Crt_1_1Optional.html#acac8a48c762fc374da936b3ef88d4de8">Aws::Crt::Optional::value</a></div><div class="ttdeci">T &amp; value() &amp;</div><div class="ttdef"><b>Definition:</b> Optional.h:198</div></div>
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